From 12f86df239e8a6c1d554d86b5c56e2b8713f6cd8 Mon Sep 17 00:00:00 2001
From: Joey Hess <joey@kitenet.net>
Date: Sun, 1 Jan 2012 17:24:21 -0400
Subject: [PATCH] workaround a bug in the discount perl binding

Empty input, or input consisting soley of whitespace
caused an uninitialized value warning.
---
 IkiWiki/Plugin/mdwn.pm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/IkiWiki/Plugin/mdwn.pm b/IkiWiki/Plugin/mdwn.pm
index 0dc0cc336..b10d08517 100644
--- a/IkiWiki/Plugin/mdwn.pm
+++ b/IkiWiki/Plugin/mdwn.pm
@@ -53,7 +53,12 @@ sub htmlize (@) {
 		if (! defined $markdown_sub) {
 			eval q{use Text::Markdown::Discount};
 			if (! $@) {
-				$markdown_sub=\&Text::Markdown::Discount::markdown;
+				$markdown_sub=sub {
+					# Workaround for discount binding bug
+					# https://rt.cpan.org/Ticket/Display.html?id=73657
+					return "" if $_[0]=~/^\s*$/;
+					Text::Markdown::Discount::markdown(@_);
+				}
 			}
 		}
 		if (! defined $markdown_sub) {
-- 
2.26.2